Home / 55,413.20-83,028.60-31,998.80

Finding the Fourth Proportional to 55,413.20, 83,028.60 and 31,998.80

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Solution

The fourth proportional to 55,413.20, 83,028.60 and 31,998.80 is: 47,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413.20 : 83,028.60 = 31,998.80 : x
  2. Step 2: Convert to fraction form
    55,413.20/83,028.60 = 31,998.80/x
  3. Step 3: Cross multiply
    55,413.20x = 83,028.60 × 31,998.80
  4. Step 4: Simplify right side
    55,413.20x = 2,656,815,565.68
  5. Step 5: Solve for x
    x = 2,656,815,565.68/55,413.20
  6. Step 6: Final answer
    x = 47,945.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.